×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

COPPER WELDING

COPPER WELDING

COPPER WELDING

(OP)
I HAVE TO BUTT WELD AN ELECTROLITIC COPPER BAR. IT HAS 15 MM IN THICKNESS AND 150 MM WIDE. I NEED THE SAME TENSILE STRENGTH AND ELECTRIC CONDUCTIVITY THAN THE BASE METAL. I THOUGHT IN USE SMAW, GTAW OR BRAZING PROCESS.  
DO ANYBODY HAVE A SUGGESTION OR EXPERIENCE IN THE PROCEDURE SETTING AND ALL THE STEPS THAT I SHOULD FOLLOW?

THANKS.  

RE: COPPER WELDING

Silver soldering should provide the strength you
need, I'm not sure of conductivity.

RE: COPPER WELDING

Parron,
 
You can weld copper.  I had a project a few years back that required welding 0.5 inch (12.5mm) thick copper and 0.25 inch copper plate together on a process vessel.  After 10 years of service there are no problems with the work that was done.  

On your component, there should be not be a problem with electrical conductivity and the tensile strength would be very close if not the same to the base material.  

Most people don't know how to do it or where to go to get it done.  If you want additional help contact me.

RE: COPPER WELDING

Motor manufactures weld copper all the time where electrical and mechanical joint integrity is important. The connectors are insulated so heat must be kept low so a TIG welding process is used. Since the weld penetration will only be say 30 mills deep, electrical contact is enhanced by placing a piece of silver alloy (pre-place foil) between the surfaces before welding; the welding heat melts the alloy at the same time. I think this process is called TIG brazing (?).

RE: COPPER WELDING

Parron,
Depending upon your application and requirements you may want full penitration welds for strength.  
ENC

RE: COPPER WELDING

To provide conductivity we offer to customers ultrasonic welding machine which uses molocular bonding system.
We sell this machine to solar energy comapnies for welding copper fins to copper tubes without loosing conductivity.
for more information our mail address: intersun@siberg.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close